CN1871824B - Method and apparatus for translating resource names in a wireless environment - Google Patents
Method and apparatus for translating resource names in a wireless environment Download PDFInfo
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- CN1871824B CN1871824B CN2004800152776A CN200480015277A CN1871824B CN 1871824 B CN1871824 B CN 1871824B CN 2004800152776 A CN2004800152776 A CN 2004800152776A CN 200480015277 A CN200480015277 A CN 200480015277A CN 1871824 B CN1871824 B CN 1871824B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/30—Managing network names, e.g. use of aliases or nicknames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/30—Managing network names, e.g. use of aliases or nicknames
- H04L61/301—Name conversion
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/04—Protocols specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/04—Protocols for data compression, e.g. ROHC
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/565—Conversion or adaptation of application format or content
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/565—Conversion or adaptation of application format or content
- H04L67/5651—Reducing the amount or size of exchanged application data
Abstract
Method and apparatus for translating resource names in a wireless environment. A method is provided for translating a resource locator in a data network for transmission over a low bandwidth channel to a wireless device. The method includes steps of detecting a resource locator in a message transmitted to the wireless device, wherein the resource locator exceeds a selected length, and compressing the resource locator to obtain a corresponding resource identifier that is shorter in length than the resource locator. The method also comprises steps of substituting the resource identifier for the resource locator in the message to form an updated message, and transmitting the updated message to the wireless device using the low bandwidth channel.
Description
Technical field
The present invention relates generally to radio data network, and more particularly, the present invention relates to be used for changing the resource name of radio data network so that the method and apparatus of the effective utilization of resources to be provided.
Background technology
Technical progress causes the development and the deployment of large-scale data network.These networks comprise such as the public data network of internet with such as the dedicated network of wireless communication networks.The user of these networks has visit as Internet resources and the information widely that effectively exists and the ability of service.
Usually, (URL) visits Internet resources by URL(uniform resource locator), method or mechanism that described URL(uniform resource locator) can be used for describing the position of resource and is used for access resources.Because a variety of causes, indication is widely used as information reference on the internet based on the URL of the resource of HTTP(Hypertext Transport Protocol).After authorizing the wide usability of http server, dynamic and static information are encoded into URL has become common practice.This causes more dynamically but the network behavior with shortcoming, and it is increasing that shortcoming is that URL becomes---and key usually is that they only can be used in the computer software and can not be used by the mankind.Another shortcoming of long URL is: they need network to have certain transmission capacity with effectively with its transmission.
The example that transmission capacity is restricted is in wireless network environment.In wireless environment, various Portable mobile phones, PDA(Personal Digital Assistant) and calling device can carry out communication by wireless network.Described wireless network can comprise the webserver, and it is couple to public network such as the internet with wireless network.This resource that allows on the public network is effective for the wireless device on the wireless network.
Yet, be used for the long URL Chang Taichang of public network and can not transmit with the transfer approach of the actual size that is used for wireless environment.For example, in the wireless environment transfer approach that transmits such as note system (SMS), use short data burst (SDB) method of CDMA 2000 or such as other low-cost Communication Control channel transfer approach of calling channel.As replacement, must use more expensive Dedicated Traffic Channel in wireless environment, to transmit long URL.This causes the utilization of resources of poor efficiency, the systematic function that it changes higher cost into and may reduce.
Therefore, need a kind of mode, it efficiently utilizes available limited resources in wireless environment resource name to be transferred to equipment, and then increases efficient and reduce cost.
Summary of the invention
In one or more embodiment, the system that is provided comprises compression/switching network resource name and is used for carrying out transmission method and device by the low bandwidth communication channel.In one embodiment, one arbitrarily URL be compressed/be converted to semi-permanent resource identifier (being known as unified resource name (URN)) and be used for transmitting by the low bandwidth channel of wireless communication networks.In one embodiment, finishing the URL compression with a kind of transparent way makes sender or recipient all not recognize in the implementation compression.In other embodiments, use terminal point knowledge (it uses the URL in the communication network) to finish the URL compression.Thereby system is not only as dynamic URL encoder but also as the URN resolver, and therefore permission is expressed one of information format the most general on the internet in the mode that effectively transmits by effective scarce resource in the wireless environment.
In one embodiment, provide a kind of URLs of packed data network that is used for to be transferred to the method for wireless device by low bandwidth channel.Described method comprises: detect the URLs in the message that is transferred to wireless device, wherein said URLs exceeds selected length; With the described URLs of compression to obtain the resource identifier of its length correspondence shorter than the length of resource name.This method also comprises: replace described URLs in the described message to form a message of upgrading with described resource identifier; Arrive described wireless device with the transmission of messages of using described low bandwidth channel with described renewal.In another embodiment, be provided for URLs in the packed data network to be transferred to the device of wireless device by low bandwidth channel.Described device comprises the detection logic, and it is used for detecting the URLs of the message that is transferred to wireless device, and wherein said URLs exceeds selected length.Described device also comprises: compressed logic, and it is used for described URLs is compressed to the resource identifier of its length correspondence shorter than the length of URLs; And processing logic, it is used for replacing the URLs of described message to form a message of upgrading with described resource identifier.Described device also comprises a transmission logic, and it is used to use low bandwidth channel that the transmission of messages of described renewal is arrived wireless device.
In another embodiment, provide URLs in a kind of translation data network to be transferred to the device of wireless device by low bandwidth channel.Described device comprises detection means, and it is used for detecting the URLs of the message of waiting to be transferred to wireless device, and wherein said URLs exceeds selected length.Described device also comprises compression element, and it is used to compress described URLs to produce the resource identifier of its length correspondence shorter than the length of described URLs.Described device also comprises the replacement member, and it is used for replacing the described URLs of described message to form a message of upgrading with resource identifier.Described device also comprises conveying member, and it is used to use low bandwidth channel that the transmission of messages of described renewal is arrived described wireless device.
In another embodiment, provide a kind of computer-readable media, its contain computer executable instructions with the URLs that is used for the packed data network to be transferred to wireless device by low bandwidth channel.Carry out a kind of method when described instruction is performed, it comprises: detect the URLs in the message that is transferred to wireless device, wherein said URLs exceeds selected length.Described method also comprises the described URLs of compression to obtain the resource identifier of its length correspondence shorter than the length of URLs.Described method also comprises with the URLs in the resource identifier replacement message to form a message of upgrading.Described method also comprises uses low bandwidth channel that the transmission of messages of described renewal is arrived described wireless device.
In another embodiment, provide a kind of carrier signal, its comprise the program command that can carry out by processor with the URLs that is used for the packed data network to be transferred to wireless device by low bandwidth channel.Described carrier signal comprises the program command of the URLs that is used for detecting the message that is transferred to wireless device, and wherein said URLs exceeds selected length.Described carrier signal also comprises and is used for the compressed resource finger URL to obtain the program command of its length than the resource identifier of the correspondence of the length weak point of described URLs.Described carrier signal also comprises and is used for replacing the URLs of message to form the program command of a message of upgrading with resource identifier.Described carrier signal also comprises and is used to use low bandwidth channel with the transmission of messages of the described renewal program command to wireless device.
Description of drawings
When in conjunction with the accompanying drawings, hereinafter to describe in detail by reference, the above-mentioned aspect of embodiment as herein described and subsidiary advantage will become and be easier to understand.
Fig. 1 shows an embodiment of the data network of the system that comprises compression/tts resource name;
One embodiment of the affairs of registering and resolving with the URL that provides in the data network between URR server and the URR user side is provided Fig. 2;
Fig. 3 shows an embodiment of the URP server of the URL coding be used for detecting data network;
Fig. 4 shows and to be used for changing and/or an embodiment of the URR server of the URL of packed data network;
Fig. 5 shows an embodiment of the network comprise the URP server that is suitable for providing the resource name conversion and URR server;
Fig. 6 shows an embodiment of a kind of method of the resource name conversion be used for providing data network;
Fig. 7 shows an embodiment who carries out resource name data converted network;
Fig. 8 shows an embodiment of a kind of method of the resource name conversion be used for carrying out data network.
Embodiment
Below describe in detail to describe a kind of system, it comprises the method and apparatus that URL is arbitrarily compressed/is converted to semipermanent URN.Described system is suitable for using together allowing by low bandwidth channel URL effectively being transferred to wireless device with wireless network, and then allows wireless device with effective and economic mode access various network resource.In one or more embodiment, resource name compression/translation realizes by carrying out following steps.
1. determine to treat to be transferred to the long URL of the wireless device of network activation by wireless network.
2. change described long URL compressed to obtain/conversion URN.
3. use and can be used for URN being transferred to wireless device with the limited resources of wireless device communication.
4. receive a request to receive the Internet resources that are associated with selected URN from described wireless device.
5. resolve described selected URN to obtain its original URL.
6. the Internet resources that are associated with described original URL of request and be used to be transferred to wireless device.
Fig. 1 shows an embodiment of the data network 100 of the system that comprises compression/tts resource name.Network 100 comprises unified resource agency's (URP) server 102 and unified resource registration (URR) server 104, and it has the logic of carrying out communication by the public data network 106 such as the internet.URP102 and URR 104 also comprise the logic of carrying out communication by radio data network 108.Described data network 108 also comprises the finite bandwidth wireless communication channel 110 to wireless device 112.For example, radio data network 108 can be that wireless cellular communication network and wireless device 112 can be the mobile phones of network activation.Finite bandwidth channel 110 can be control channel or the calling channel that is used for communication low-volume information between network 108 and wireless device 112.Also the display business channel 114.Traffic Channel 114 is the high-speed dedicated channel that are used for communication bulk information between network 108 and equipment 112.Traffic Channel 114 is expensive resources and is generally used for speech communication or can not carries out the communication of the information of communication by finite bandwidth channel 110 too greatly.
In the operating period of network 100, can be from public network 106 via URP 102 with message transmission to wireless device 112.URP 102 comprises that logic is to scan this paper information in these transmission and other Given information coding to detect long URL and to use the URN of compression/conversion that it is replaced by the service that utilizes URR 104.For example, long URL is oversize and URL that can not transmit by low bandwidth communication channel 110, and therefore will need to use expensive Traffic Channel 114 to be used to be transferred to wireless device 112.Thereby URR 104 usefulness act on the dynamic registration mechanism of new URL to the URN mapping, also use the URN resolver of the URN that acts on previous registration.In one or more embodiment, also can be by recognizing that its existence uses URR 104 with other network entity that these same services are provided.
Can directly visit URR 104 and provide service with the system component on public network 106 sides that service offered network 100 or by the system component on wireless network 108 sides of network 100, wherein said assembly comprises the component software in the wireless device 112.Comparatively speaking, URP 102 is positioned between two networks (106 and 108) and with transparent way and will compresses/switch technology and the URL coordination that is transferred to wireless device 112.Thereby URP 102 is used for the function of the protocol streams between optimization wireless device 112 under the situation of the definite knowledge of the terminal point that does not have protocol conference and other network entity.
In one embodiment, URP 102 is the different webservers that are positioned at different physical locations with URR 104.In another embodiment, URP 102 is positioned at identical physical locations with URR 104, and in another embodiment, URP 102 is identical equipment with URR 104.Thereby in one or more embodiment, URP 102 and URR 104 can comprise any network configuration in fact.
One embodiment of the affairs 200 of registering and resolving with the URL that provides in the data network between URR server 204 and the URR user side 202 is provided Fig. 2.Two URR interfaces of affairs 200 explanations, it is defined as URL register interface 206 and URN resolution interface 208.In one embodiment, provide interface 206,208 by known tcp port, yet, any suitable interface protocol can be used.
In the operating period of URL register interface 206, shown in 210, URR user side 202 (for example URP 102) is the binding of request URL and URN clearly, and in response, shown in 212, URR 204 carries out the compression of being asked/change and pass back the URN of gained.The URN 212 representative compressions of gained and/or the URL of conversion can send it to wireless device (being equipment 112) by the communication channel that wireless device is couple to the finite bandwidth/capacity of wireless network.
In the operating period of URN resolution interface 208, shown in 214, the parsing of the specific URN of URR user side 202 requests.In one embodiment, URR 204 carries out an operation, and it is that the inverse process of registration process is to resolve to specific URN its original URL.Shown in 214, the URL through resolving is passed back URR user side 202.Therefore, the URR user side can then be visited the particular network resource that is associated with URL through resolving.
Fig. 3 shows an embodiment of the URP server 300 of the URL coding be used for detecting data network.URP 300 comprises the processing logic 302 that is couple to data/address bus 304.What also be couple to data/address bus 304 is socket 306, memory 308 and user interface 310.Processing logic 302 further is couple to URL and detects logic 312 and optional cache memory 314.In the operating period of URP 300, processing logic 302 is carried out the program command that is stored in the memory 308.In one or more embodiment, processing logic 302 comprises the combination of CPU, gate array, hardware logic, software or software and hardware.Thereby processing logic 302 generally contains need be used for carrying out the machine readable instructions that is stored in memory 308 circuit with function that URP as herein described is provided.
Memory 308 comprises RAM, ROM, FLASH, EEROM or its combination.Thereby memory 308 can comprise the memory of any kind that can store the instruction that can be used by URP 300 and out of Memory in fact.
User interface 310 (for example) imports 316 from other input mechanism reception user such as voice band line of keypad, pointing device, contact zone or reception and process voice commands.User interface 310 also can provide output to the various output mechanisms such as display, LED, audio tweeter or other type vision or audible indicator.Thereby hardware and/or software that user interface 310 comprises any combination receive user's input and export visual information or audible indicators to the user to allow URP300.
Network interface 306 is used for transmitting and reception information between URP 300 and other network entity via network communication channel 318.For example, in one embodiment, socket 306 comprises the logic of using communication channel 318 to transmit and receive information by the public data network such as the internet.In one embodiment, socket 306 also comprises the logic of transmitting and receive information by the wireless network such as radio telecommunication network.Thereby URP 300 can be with wired or wireless network communication and is used to handle transmission from a kind of type network to another kind of type network.
The configuration that it should be noted that URP 300 just is suitable for providing a configuration of the resource name conversion in the data network.Can also use other configuration in category of the present invention or have different other assemblies that dispose.
In one embodiment, URP 300 is inserted between public network and the wireless network, and is used for detecting any URL coding from public network to the transmission that is positioned at the wireless device on the wireless network.For example, receive transmission by socket 306 from public network.Processing logic 302 and the 312 processing transmission that these received of detection logic are to determine whether to comprise any long URL.For example, in one embodiment, URP 300 is truncated to the Network Transmission of wireless device as transparent HTTP Proxy.For example, it will be understood by one of ordinary skill in the art that the transparent THHP of insertion acts on behalf of and cache memory is handled Network Transmission or Network Transmission is turned to.For example, in one embodiment, the transmission of known intercept port 80.In another embodiment, URP 300 serves as the agency in the SMS gateway that is inserted in wireless network.Described agency can be truncated to the transmission of wireless device and the long URL in the detected transmission.For example, length surpass the URL of 160 bytes can be detected and be defined as long URL.In another embodiment, can detect the URL that length surpasses 256 bytes.Thereby whether URL and definite these URL after testing that URP 300 can use known technology to detect and have any designated length in fact are long URL.
If detect long URL, processing logic is used for registering with reference to the URL that figure 2 describes with request by socket 306 and the communication of URR server so.For example, can realize the URL registration by the register interface of contact URR server.When registration URL, the URR server returns corresponding URN, and it is lacked than original URL and is designed to treat to be transferred to wireless device by low bandwidth channel.Processing logic 302 is then used the long URL in the short URN replacement original transmitted, and then is transferred to the transmission of the wireless device on the wireless network again.Because URN is than original URL much shorter, so the transmission of the wireless device to the wireless network can effectively utilize low bandwidth channel.In addition, in one embodiment, the function of URP 300 is transparent, because transmission network entity or reception wireless device do not recognize that all any situation in the transmission has all changed.
URP 300 also can comprise optional cache memory 314, makes the cacheable message content that is associated with one or more URL.For example, the message that is sent to wireless device can comprise long URL and related message content, such as the audio or video file.In one embodiment, these files are cached in the cache memory 314 at URP 300 places.More detailed discussion about the operation of the URP 300 of cache memory 314 is provided in another part of this document.
In one embodiment, the processing logic 302 of URP 300 is carried out described function by the program command that execution is stored on the computer-readable media.For example, memory 308 comprises one type computer-readable media.Can during making URP 300, program command be stored in the memory 308.In another embodiment, via user interface 310 program command is written in the memory 308.For example, the user can download to instruction the memory 308 via the computer-readable media of user interface 310 from this locality, and described computer-readable media can or can send to instruction the memory of any other type of URP 300 via user interface 310 such as floppy disk, CD, memory card, flash memory device, ROM.
In another embodiment, download the instruction of carrying out with the function of carrying out URP 300 by processing logic 302 from network entity via socket 306.For example, the central network handling facility of addressable public network can be used for being received by URP 300 by the public network download instruction.In this embodiment, described instruction be receive from network by socket 306 and be stored in and be used for the memory 308 carrying out to carry out the function of URP 300 as herein described by processing logic 302.Thereby instruction is to be transferred to URP's 300 via public network with the form of carrier signal.
Fig. 4 shows and to be used for changing and/or an embodiment of the URR server 400 of the URL of packed data network.URR 400 comprises the processing logic 402 that is couple to data/address bus 404.What also be couple to data/address bus 404 is socket 406, memory 408 and user interface 410.Processing logic 402 further is couple to translation/compression logic 412.
In the operating period of URR 400, processing logic 402 is carried out the program command that is stored in the memory 408.In one or more embodiment, processing logic 402 comprises the combination of CPU, gate array, hardware logic, software or hardware and software.Thereby processing logic 402 generally comprises and can be used for carrying out the circuit that is stored in the machine readable instructions in the memory 408.
User interface 410 (for example) imports 414 from other input mechanism reception user such as voice band line of keypad, pointing device, contact zone or reception and process voice commands.User interface 410 also can provide output to the various output mechanisms such as display, LED, audio tweeter or other type vision or audible indicator.Thereby hardware and/or software that user interface 410 comprises any combination receive user's input and export visual information or audible indicators to the user to allow URR400.
In one embodiment, URR 400 is couple to public network and/or wireless network via socket 406 and is used for providing URL registration and parsing to user side.For example, in one embodiment, URR 400 provides register interface 206 and the resolution interface of describing with reference to figure 2 208.
During operation, URR 400 receives the register requirement that comprises long URL from network user end.By socket 406 reception described requests and by processing logic 402 processes said request.Processing logic 402 sends to conversion logic 412 with long URL, and wherein URL is compressed/changes the short URN that turns back to processing logic 402 with generation.Then will lack URN via socket 406 sends it back the network user end of request registration once to processing logic 402.
In one embodiment, translation/compression logic 412 is carried out URL conversion/compression by using the known conversion based on form.For example, in one embodiment, conversion logic 412 uses the dull numeral that increases that long URL conversion (or mapping) is short URN.For example, the first long URL can be mapped as the URN that is expressed as " http://A.1 ", and next long URL can be mapped as " http://A.2 ", and the next one is mapped as " http://A.3 " etc.Thereby, use the replacement based on form of the dull numeral that increases that long URL is compressed into short URN.In another embodiment, use hashing technique that long URL is compressed into short URN.For example, known use hash function is transformed into a string character the value or the key of the shorter regular length of representing the original character string.In another embodiment, use different mechanism (for example, mechanism " URP ") to make URN on sentence structure, represent URL.Thereby the long URL that relates to " http://long-domain-name.com/big-path/even/more/text " can be represented as the short URN that is expressed as " URP:293994 ".Thereby, can use any known technology that long URL is changed/be compressed into short URN by conversion logic 412.
During URL resolved, URR 400 received the analysis request that comprises short URN from network user end.By socket 406 reception described requests and by processing logic 402 processes said request.Processing logic 402 will be lacked URN and be sent to conversion logic 412, wherein the resolved original URL that sends it back processing logic 402 with generation of URN.Processing logic 402 then sends it back network user end via socket 406 with long URL.In one embodiment, the resolving of being carried out by conversion logic 412 is the inverse process that is used to produce the registration process of URN.For example, resolving can be the inverse process of above-mentioned any registration process.In one embodiment, conversion logic 412 comprises memory with the mapping based on form between storage URL and the related URN.
In one embodiment, the processing logic 402 of URR 400 and/or conversion logic 412 are carried out described function by the program command that execution is stored on the computer-readable media.For example, memory 408 is the computer-readable medias that can be used for storing the instruction of being carried out by processing logic 402.Can during URR400 makes, program command be stored in the memory 408.In another embodiment, via user interface 410 program command is written in the memory 408.For example, the user can download to instruction the memory 408 via the computer-readable media of user interface 410 from this locality, and described computer-readable media can or can send to instruction the computer-readable media of any other type of URR 400 via user interface 410 such as floppy disk, CD, memory card, flash memory device, ROM.
In another embodiment, download the instruction of carrying out with the function of carrying out URR 400 by processing logic 402 from network entity via socket 406.For example, the central network handling facility of addressable public network can be used for being received by URR 400 by the public network download instruction.In this embodiment, described instruction receives from public network by socket 406, and is stored in the memory 408 and is used for being carried out to carry out the function of URR 400 as herein described by processing logic 402.Thereby instruction is to be transferred to URR's 400 via public network with the form of carrier signal.This allow to use that public network adds where necessary, change, deletion or registration updating and analytic technique.
The URP server and the URR server of the resource name conversion that is suitable for providing in the data network is provided for one embodiment of Fig. 5 display network 500, described network 500.Network 500 comprises public data network 502, and it comprises being connected URP server 504 and URR server 506.URP 504 is couple to radio data network 508, and it carries out wireless telecommunications via low bandwidth radio link 512 with wireless device 510.Network 508 also can carry out communication with wireless device 510 via the high-bandwidth traffic channel 518 of costliness.In addition, public network 502 and other entity on public network 502 provide the network entity 514 of one or more network service to carry out communication.
Fig. 6 shows an embodiment of the method 600 be used for providing the conversion of data network resource name.For example, method 600 is suitable for using with the network shown in Fig. 5 500.Therefore, for more for simplicity, the following detailed description of method 600 comprises other reference to network 500.
Referring now to Fig. 6,, method 600 originates in square 602, wherein via URP network is served employed long URL and is transferred to mobile device.For example, as shown in network 500, network entity 514 is provided services on the Internet and is attempted to transmit long URL (by path 5a transmission), thereby via URP 504 and network 502, the 508 identifications service to wireless device 510.For example, long URL is oversize and can not it be transferred to equipment 510 via low bandwidth channel 512.
At square 604 places, URP finds to wait to be passed to the long URL of wireless device.For example, by the whole bag of tricks (that is, protocol knowledge, pattern matching or other method as herein described), URP 504 finds URL (transmitting on the 5a of path) long enough so that employing compression/format transformation is valuable.
At square 606 places, the URP request is at URR place registration URL.For example, the register interface (being interface 206) of URP 504 visit URR 506 and send long URL (by path 5b transmission) in the mode of request registration.
At square 608 places, as the result of the register requirement in the previous steps, the URN that will compress/change by URR is transferred to URP.For example, such as in mapping place based on form, URR 506 uses one or more technology as herein described to produce the URN of compression/conversion, and URN is transferred to (by path 5c) URP 504.
At square 610 places, the URN of compression/conversion replaces the URL in the original transmitted, then uses low bandwidth channel 512 by wireless network it to be delivered to wireless device.Thereby the URN of compression/conversion sends to wireless device by available limited resources.For example, URP 504 receives the URN (by path 5b transmission) of compression/conversion from URR 506, replace the transmission that the URL in the original transmitted (by path 5a transmission) upgrades with formation with URN, and be delivered to wireless device 510 via the transmission (by path 5d transmission) that wireless network 508 will upgrade.
When wireless device 510 resource that request is extracted with URN is associated, URP and URR resolve URN jointly and make request redirect to source material, as described in following method step.
At square 612 places, wireless device attempts to extract via wireless network the resource that is associated with URN.For example, wireless device 510 transmission requests (by path 5e transmission) are to receive resource from network entity 514.URP 504 intercept requests.
At square 614 places, URP request analysis URN.For example, URP 504 visits the resolution interface (being interface 208) of URR 506 and URN is sent to (by path 5f transmission) and treats resolved URR 506.
At square 616 places, URN is through resolving to determine original long URL.For example, URR 506 resolves URN (by path 5f transmission) to produce original URL by putting upside down the function that is used to produce URN at first.The URL of gained is transferred to (by path 5g) URP 504.
At square 618 places, the URL that URP visit receives from URR is to extract the network service by the wireless device request.For example, URP 504 receives URL (by path 5g transmission) and uses it that network service that is provided by network entity 514 is provided from URR 506.For example, by path 5h transmission access request.At square 620 places, be passed to wireless device 510 from network entity 514 requested service.
In one or more embodiment, can finish the step of the parsing URN described in the square 612-618 by different way.For example, in one embodiment, general function by developing modern computer system is with by being that specific mechanism assigned code processor is resolved reference content, and wireless device can have specific URN resolver, from network management facility it is downloaded on the described wireless device.Thereby code handler is contacted directly URR and is obtained corresponding URL to resolve URN.For example, wireless device 510 comprises code handler to use directly visit URR 506 of wireless network 508, shown in 516, and and then resolves the URN that is received.
In another embodiment, equipment 510 comprises that logic (being software or code handler) is to resolve URN and not have the URL resource that request directly comes the gained of automatic network 508 under any interactive situation with URP 504.For example, can will be used to resolve the software download of URN to equipment 510 via network 508.In another embodiment, after the resource that equipment 510 is asked with specific URN is associated, corresponding URL turns back to equipment 510 and equipment 510 and directly visits URL via high-bandwidth channels 518 via high-bandwidth channels 518.Therefore, according to the present invention, URR 506 or wireless device 510 practicable URN and with by mobile device 510 directly or utilize the service of URP 504 and the parsing of the resource that the URL of the gained that extracts is associated.
One embodiment of Fig. 7 display network 700, the conversion of the resource name in the line data network in fact.Network 700 comprises public data network 702, and it comprises URP 704 is connected with the network of URR 706.URP704 is couple to radio data network 708, and described radio data network 708 carries out wireless telecommunications via low bandwidth radio link 712 with wireless device 710.In addition, public network 702 with provide the network entity 714 of one or more network service to carry out communication to other network entity.
Network 700 also can comprise the equipment of other type, such as the wireless and wireline equipment of other type, and these equipment can utilize variety of network types and communication architecture (comprise wireless and cable network, individual and public network, switching regulator and non-switching regulator network, directly link and any its combination) to carry out communication with URP 704, URR 706 or any other network entity.
Fig. 8 shows an embodiment of the method 800 of the resource name conversion be used for carrying out data network.Method 800 explanation comprises how the message of big URL and association messages content effectively is transferred to wireless device on the wireless network.For example, method 800 is suitable for using with the network shown in Fig. 7 700.Therefore, for more for simplicity, the following detailed description of method 800 comprises other reference to network 700.
Referring now to Fig. 8,, method 800 originates in square 802 places, wherein will comprise that via public data network the transmission of messages of one or more long URL is to (by path 7a) wireless device.Described message comprises a large amount of message contents that is associated with URL.For example, described message content can comprise the message content of image data, video data, voice data, text data or any other type.
At square 804 places, check whether message (by path 7a transmission) has the long URL that the use low bandwidth channel can not effectively be transferred to wireless device.For example, by being used to find to wait that the URP 704 that is passed to one or more long URL of wireless device delivers message.For example, by the whole bag of tricks (being protocol knowledge, pattern matching etc.), URP 704 one or more long URL of discovery are included in the message and are worth with the form of compression/conversion described URL being provided to wireless device 710.
At square 806 places, URP is used for the message content that high-speed cache is included in described message.For example, URP 704 comprises the cache memory 716 that is used for the described message content of high-speed cache.This message content is associated with one or more URL in being included in message.
At square 808 places, the URP request registration is included in by one or more the long URL in the message of path 7a transmission.For example, the register interface of URP 704 visit URR 706 and transmission (by path 7b) one or more URL to be registered.
At square 810 places,, the URN of compression/conversion of each chartered URL is transferred to URP by URR as the result of the register requirement of previous steps.For example, URR 706 URN that will compress/change is transferred to (by path 7c) URP 704.In one embodiment, URP 704 also is used to make the content of institute's high-speed cache to be associated with the corresponding URN that receives from URR 706.
At square 812 places, URP replaces long URL with the message that forms renewal and use low bandwidth channel by wireless network the message of described renewal to be delivered to wireless device with the URN of compression/conversion.Thereby the URN of compression/conversion is sent to wireless device by available limited resources.For example, URP 704 receives the URN of (by path 7c) compression/conversions and URN is replaced to the message forming the message of upgrading from URR 706, and via wireless network 708 transmission of messages (by path 7d) of renewal is arrived wireless device 710.
Following steps are described and to be stored in the cache memory 716 is how to be transferred to wireless device 710 through the cached messages content.At square 814 places, wireless device is attempted to extract and the URN associated content that receives via wireless network.For example, wireless device 710 transmission (by a path 7e) request is to extract via wireless network 708 and the URN associated content.
At square 816 places, the message content that the URP visit is associated with the URN that is received.For example, in response to the request that receives (by path 7e) from wireless device 710, the URP request is from the parsing of the URN of URR706.When the URL that returns through resolving, URP 704 extracts from cache memory and is transferred to (by path 7f) equipment 710 with the URL associated content and with it.
In another embodiment, use tight translation to come to provide content through high-speed cache to wireless device.In this embodiment, URP visit is associated with URN from wireless device 710 receptions is stored in message content the cache memory 716.At square 818 places that determine, URP is transferred to content association (by path 7f) wireless device 710.
Method 800 allows wireless device to receive to lack the message that URN replaces long URL by limited bandwidth channel.Thereafter, wireless device all is the message content that the transparent way visit is associated with short URN with a pair of transmission network entity and wireless device.
Method 600 and method 800 are contemplated to be illustrative and the also operation of unrestricted various embodiment as herein described.For example, minority change, interpolation or deletion being done in any aspect of described method will become apparent for the those skilled in the art.In addition, under the situation of the category that does not depart from described embodiment, capable of being combined, recombinate or rearrange described method step.
Described a kind of system that is used for resource name compression/translation, it provides band-limited effectively making to be used for being used for carrying out communication with wireless device.Described system is fit to use with the wireless device of any kind, and especially is fit to use to provide the quick of the resource on the data network and effectively visit with mobile phone.
Therefore,, should be appreciated that, under the situation that does not break away from its spirit or substantive characteristics, can do various changes described embodiment though this paper has illustrated and described one or more embodiment of the method and apparatus that is used for resource name compression/translation.Therefore, the explanation that the disclosure of this paper and description content are contemplated to be category of the present invention is and also unrestricted, and above statement has category of the present invention in the claim.
Claims (11)
1. a URLs that is used for compressing a data network is to be transferred to the method for a wireless device by a low bandwidth channel, and described method comprises:
The URLs of detected transmission in the message of described wireless device, wherein said URLs exceeds a designated length;
Compress described URLs to obtain a length corresponding resource identifier shorter than described URLs;
Use described resource identifier to replace described URLs in the described message to form a message of upgrading;
Use described low bandwidth channel that the transmission of messages of described renewal is arrived described wireless device; With
The request that receives is resolved described resource identifier to produce described URLs to receive the information that is associated with described resource identifier.
2. method according to claim 1, wherein said detection step comprise uses the described message of a network proxy intercepts.
3. method according to claim 1, wherein said compression step comprise uses a conversion based on form that described URLs is mapped on the described resource identifier.
4. method according to claim 1, wherein said compression step comprise uses a dull numeral that increases that described URLs is mapped on the described resource identifier.
5. method according to claim 1, wherein said compression step comprise uses a hash function that described URLs is mapped to described resource identifier.
6. method according to claim 1, it further comprises use one high-bandwidth channels described message transmission is arrived described wireless device.
7. a URLs that is used for compressing a data network is to be transferred to the device of a wireless device by a low bandwidth channel, and described device comprises:
Detection means, it is used for the URLs of detected transmission to a message of described wireless device, and wherein said URLs exceeds a designated length;
Compression element, it is used to compress described URLs to produce a length corresponding resource identifier shorter than described URLs;
Replace member, it is used for using described resource identifier to replace the described URLs of described message to form a message of upgrading;
Conveying member, it is used to use described low bandwidth channel that the transmission of messages of described renewal is arrived described wireless device; With
Resolution component, it is used to receive a request to receive the information that is associated with described resource identifier, resolves described resource identifier to obtain described URLs.
8. the method for the information that is associated with Internet resources that receive with a URLs is identified of a wireless device that is used for operating a wireless network, described method comprises:
Use a low bandwidth channel to receive a resource identifier from described wireless network, wherein said resource identifier is a compressed version of described URLs;
Resolve described resource identifier to produce described URLs; With
The described information that is associated with described URLs by described wireless network access.
9. method according to claim 8, wherein said analyzing step comprises:
Ask a webserver to resolve described resource identifier; With
Receive described URLs from the described webserver.
10. the device of the information that is associated with Internet resources that receive with a URLs is identified of a wireless device that is used for operating a wireless network, described device comprises:
Be used to use a low bandwidth channel to receive the member of a resource identifier from described wireless network, wherein said resource identifier is a compressed version of described URLs;
Be used to resolve described resource identifier to produce the member of described URLs; With
The member that is used for the described information that is associated with described URLs by described wireless network access.
11. device according to claim 10, the wherein said member that is used to resolve comprises:
Be used to ask a webserver to resolve the member of described resource identifier; With
Be used for receiving the member of described URLs from the described webserver.
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| PCT/US2004/017616 WO2004109965A2 (en) | 2003-06-04 | 2004-06-04 | Method and apparatus for translating resource names in a wireless environment |
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| KR20060023984A (en) | 2006-03-15 |
| CN1871824A (en) | 2006-11-29 |
| EP1629618A4 (en) | 2011-06-15 |
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| IL172205A0 (en) | 2006-04-10 |
| US20040248558A1 (en) | 2004-12-09 |
| MXPA05013102A (en) | 2006-03-09 |
| TW200511770A (en) | 2005-03-16 |
| US7333801B2 (en) | 2008-02-19 |
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| BRPI0410952A (en) | 2006-06-27 |
| CA2527677A1 (en) | 2004-12-16 |
| WO2004109965A3 (en) | 2006-04-20 |
| RU2005141576A (en) | 2006-06-10 |
| JP2006526968A (en) | 2006-11-24 |
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